Germany must have a free-trade zone in Europe. Germany also needs robust demand in Europe. Germany also wants prudence in borrowing practices. And Germany must not see a return to the anti-German feeling of previous epochs. Those are several needs, and some of them are mutually exclusive. In one way, the issue is Greece. But more and more, it is the Germans that are the question mark. How far are they willing to go, and do they fully understand their national interests? Increasingly, this crisis is ceasing to be a Greek or Italian crisis. It is a crisis of the role Germany will play in Europe in the future. The Germans hold many cards, and that's their problem: With so many options, they must make hard decisions -- and that does not come easily for postwar Germany.